Frozen Skipjack

I know when the skipjack are around, you have to cash in. That means the majority must be frozen for later use. I would like to knows how to make the bait more attractive when used after freezing. I guess I am trying to ask if there is anything you can soak them in or inject into them to make them seem as fresh as possible. Thanks

I also just vacuum seal. I like to make bags of one,two,three and fours. for I never know how the fishing is going to go or how many people go with me. I do not like to refreeze so I like to take little as possable. can always run back to the house for more if needed or keep an extra pack on ice so it dont thaw unless i need it.